How can I implement a parallel workflow in ucm with "n" groups according to multiselect field?

Hi,

How can I implement a parallel workflow in ucm with "n" groups according to multi select field?

When check-in a content is informed in a multiselect field the Departments need to collaborate in the elaboration of content, ie, the number of groups required is variable.

My workflow details:

Steps:                         

1 - Reviewers

2 - Reviewers' Managers Approval

3 - Author's Manager Approval

In the check-in none or many departments can be select, one member of each group need to approve in step 1, one Manager need to approve for each group in step 2 and in the step 3 Author's Manager need to approve.

In the example below of Parallel Workflow there is 2 fixes groups: